594 WEST OF SCOTLAND VETERINARY ASSOCIATION. 
nerve, although this had remained unnoticed until the present 
moment. When this was reported by me, it was said not to 
have existed a week previous; but this I did not credit. The 
shell of the right horn was worn through with rubbing against 
the wall, her favorite occupation being to walk round the box 
leaning against the wall. 
“In answer to inquiries, I was told, the disease at first 
was attended with very little disturbance, the animal walking 
only a little staggering, and some uneasiness being occasion- 
ally observed ; and even at the present time there were days 
in which little could be observed amiss with the animal. On 
being led out of the box, she manifested an inclination to 
turn to the left side, and being allowed to do this she came 
in contact with a cart, at which she pushed till she was 
exhausted, and was taken away from it by force. She would 
not back, and there was a peculiar jerking action of the near 
fore extremity, by which it was lifted extra high from the 
ground. 
“ These, then, may be said to be all the symptoms 
presented similar to those of recurrent stomach staggers. 
But upon calmly reviewing the whole of them, I came to the 
conclusion that this was not a case of recurrent stomach 
staggers, for although mere functional derangement of the 
brain would account for the staggering gait, it never could 
for the other symptoms enumerated, if my physiological 
knowledge, which I have briefly laid before you, was based 
on good grounds. I was therefore led to infer that organic 
disease of that organ to some extent had taken place ; in 
short, that there was a tumour situated in the left lateral 
ventricle, and such was the diagnosis given. 
(e Such being the conclusion arrived at, it will appear 
essentially necessary that I should account for the forming of 
such an opinion, and accordingly I now pass on to do so. 
And in the first place, the disease in question, which com- 
menced in a benign form, lasted for upwards of four months, 
gradually assuming a more dangerous aspect, the principal 
characteristic being a staggering gait. Staggering, although 
it is a characteristic symptom of stomach staggers, is not 
solely confined to that disease, for in sturdy the same is 
known to exist. Admitting that gastric derangements may 
and do occur in a recurrent or intermitting form, and that 
this may last for many months, yet a recurrent form of 
disease, and a permanent staggering gait, being a chief 
symptom of such derangement, is not all that is here pre- 
sented to our view or notice. If it were a case of recurrent 
stomach staggers, upon what does the paralysed state of the 
optic nerve depend ? Methinks I hear some one say, we 
